Probably because it's been clear that Param like Mr. Han from the beginning, but it's unclear about his feelings for Hwi ╮( ̄▽ ̄)╭
Technically, Param did nothing wrong. He's single. But I am as a reader is rooting more for Hwi, and it's an obvious choice for me after shown what kind of person Mr. Han with his previous partner.
It's Param's fault for not being clear. Honestly, I don't even feel sorry even a bit for Param. Hwi deserves better than that.